I am ordering a ADA fish tank, and I am really excited about it, but i just have a few minor questions for you fish tank people. Because i am new to this, I assume you all know a little bit more about what's out there:

Does the VUPPA-I filter also aerate the water?-- or do I need an air stone. 

What kind of air stone do you recommend? (looking for something that can go in the substrate and be completely hidden,

What kind of air pump do you recommend? (something with the…

Ok, so i've had my tank for about 1 month or two, and after i got my plants in, and started surfing the web for answers to my many questions, i realized that i was getting NO algae!!!!!!!!!  so i got really worried and went to the pet store, and i got some tetra pellets, and i figured it would help because with my corys and plecos, it would give them algae to feed on, but its been weeks and ive been putting a whole bunch of pellets, but no algae has been growing!!!. a few days a go i noticed…

I've recently been checking my PH, due to the death of my passed gold fish,, and so when i started getting into the whole complicated fish keeping i started testing it once week, and i've had to add some sort of chemical to lower the PH. And my PH has never been lower than 7.4, and i want it to be at 7.0.. It goes back up to 7.7 every week and i've had enough!!! please help! i don't know what to do..

INFO:

20l (5 gallons. i think)

9 neon tets.

1 betta 

2…